Bugzilla Bug 144753

(Assigned to Duncan Coutts at his request.)
On sparc, the ghc_asm mangler for ghc-6.4.2 marks the symbol _module_registered
as:
00000004 C _module_registered
instead of as
0000000000000000 b _module_registered
(as taken from amd64).
This results in failures from ghci, thus:
==========================================
GHCi runtime linker: fatal error: I found a duplicate definition for symbol
   _module_registered
whilst processing object file
   /usr/lib/ghc-6.4.2/HShaskell98.o
===========================================

Apparently, this was a known problem for ghc on sparc/solaris and fixed there,
but it is also present on linux.  See
https://sourceforge.net/tracker/?func=detail&atid=108032&aid=1170933&group_id=8032

Problem is specific to sparc, but otherwise should be independent from the
environment.

I note a cross-reference to https://bugs.gentoo.org/show_bug.cgi?id=140369 for
bookkeeping purposes; feel free to ignore it.

Yay, bugzilla!  Thanks for entering this twice for the price of one!

*** This bug has been marked as a duplicate of 144752 ***